(verb) The act of backpedaling after spewing some racist sh*t that was poorly received by the other people in a conversation.

"When he goes to prison, he's gonna get raped by a big black guy named Carl..."
"Why does he have to be black?"
"I... guess he doesn't? That's the first thing I thought of."
"Why?"
"I don't know. I'm not racist. My best friend is black."
"Nigga, you blacktracking."